Out-of-Bounds Read Vulnerability in Hyperscan Affecting Intel Products
CVE-2026-40216

4.8MEDIUM

Key Information:

Vendor

Intel
Status
Hyperscan
Vendor
CVE Published:
10 November 2026

What is CVE-2026-40216?

The vulnerability in Hyperscan before version v5.4.2.1 allows for an out-of-bounds read within user applications, leading to potential denial of service. This issue can be exploited by an unprivileged adversary with local access and requires no special internal knowledge or user interaction. While the overall impact on confidentiality, integrity, and availability is low, it poses a risk that should not be overlooked. Mitigating this vulnerability is essential to enhancing the security posture of affected systems.

Affected Version(s)

Hyperscan before version v5.4.2.1

References

https://intel.com/content/www/us/en/security-center/advis...

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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